右上角语言切换

The group standard, Determination of Silanol Content on the Surface of Fumed Silica (T/FSI 490-2020), is officially released on 30th April,2020 and will be implemented on 30th May, 2020. This standard is set by Guangzhou Huifu Reaserch Institute Co., Ltd., which is a wholly-owned subsidiary of Yichang Huifu Silicon Material Co., Ltd.